"SetDestination" can only be called on an active agent that has been placed on a NavMesh.

I am testing the navigation out. I have baked my NavMesh at runtime and I have movement working on a simple capsule object. I made a copy of the capsule and placed it next to the existing one. The copy generates the error but the original still works. They are both set at the same height, what is going on?

 

Usually this is because you are either:

a) telling a Prefab reference to go somewhere (eg, not what is in the scene)
b) telling a disabled GameObject to go somewhere